nix-config/hosts/modules/common.nix

{
  lib,
  inputs,
  outputs,
  pkgs,
  config,
  ...
}: {
  time.timeZone = "Europe/Warsaw";
  i18n.defaultLocale = "en_US.UTF-8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "pl_PL.UTF-8";
    LC_IDENTIFICATION = "pl_PL.UTF-8";
    LC_MEASUREMENT = "en_US.UTF-8";
    LC_MONETARY = "en_US.UTF-8";
    LC_NAME = "pl_PL.UTF-8";
    LC_NUMERIC = "en_US.UTF-8";
    LC_PAPER = "pl_PL.UTF-8";
    LC_TELEPHONE = "pl_PL.UTF-8";
    LC_TIME = "en_US.UTF-8";
  };

  hardware.graphics = {
    enable = true;
    enable32Bit = true;
  };

  services = {
    logind = {
      lidSwitch = "ignore";
      # lidSwitchExternalPower = if hostname == "server" then "ignore" else "suspend-then-hibernate";
      lidSwitchExternalPower = "ignore";
    };

    libinput = {
      enable = true;
      # mouse = {
      #   accelProfile = "flat";
      #   accelSpeed = "0.0";
      # };
    };
  };

  environment = {
    # sessionVariables.NIXOS_OZONE_WL = "1";

    shells = with pkgs; [bash zsh];
  };

  system = {
    stateVersion = "24.05";
    switch = {
      enable = false;
      enableNg = true;
    };
    autoUpgrade = {
      enable = true;
    };
  };

  nixpkgs = {
    # You can add overlays here
    overlays = [
      # Add overlays your own flake exports (from overlays and pkgs dir):
      outputs.overlays.additions
      outputs.overlays.modifications
      outputs.overlays.unstable-packages

      # You can also add overlays exported from other flakes:
      # neovim-nightly-overlay.overlays.default

      # Or define it inline, for example:
      # (final: prev: {
      #   hi = final.hello.overrideAttrs (oldAttrs: {
      #     patches = [ ./change-hello-to-hi.patch ];
      #   });
      # })
    ];

    config = {
      # I'm sorry Richard Stallman
      allowUnfree = true;
    };
  };

  documentation = {
    enable = true;
    doc.enable = false;
    man.enable = true;
    dev.enable = false;
    info.enable = false;
    nixos.enable = true;
  };

  nix = let
    flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs;
  in {
    daemonCPUSchedPolicy = "batch";
    channel.enable = false;
    # nixPath = ["nixpkgs=${inputs.nixpkgs}"];

    optimise = {
      automatic = true;
      dates = ["daily"];
    };

    # Opinionated: make flake registry and nix path match flake inputs
    registry = lib.mapAttrs (_: flake: {inherit flake;}) flakeInputs;
    nixPath = lib.mapAttrsToList (n: _: "${n}=flake:${n}") flakeInputs;

    settings = {
      auto-optimise-store = true;
      experimental-features = ["nix-command" "flakes"];
      flake-registry = "";
      nix-path = config.nix.nixPath;

      substituters = [
        "https://cache.nixos.org"
        "https://hyprland.cachix.org"
        "https://nix-community.cachix.org"
        "https://cuda-maintainers.cachix.org"
      ];

      trusted-public-keys = [
        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
        "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
      ];
    };
  };
}